Harbour Investments’s Prothena Corp PRTA Stock Holding History

Harbour Investments’s Portfolio PRTA Stock Details PRTA Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$10	Hold	1	–	–	﹤0.01%	4641
2025 Q4	$10	Hold	1	–	–	﹤0.01%	3842
2025 Q3	$10	Hold	1	–	–	﹤0.01%	3723
2025 Q2	$6	Sell	1 -2	-67%	-$15	﹤0.01%	3592
2025 Q1	$37	Buy	3 +2	+200%	+$28	﹤0.01%	3509
2024 Q4	$14	Hold	1	–	–	﹤0.01%	3465
2024 Q3	$17	Hold	1	–	–	﹤0.01%	3370
2024 Q2	$21	Hold	1	–	–	﹤0.01%	3262
2024 Q1	$25	Hold	1	–	–	﹤0.01%	3193
2023 Q4	$36	Sell	1 -4	-80%	-$154	﹤0.01%	3096
2023 Q3	$241	Hold	5	–	–	﹤0.01%	2869
2023 Q2	$341	Hold	5	–	–	﹤0.01%	2856
2023 Q1	$242	Hold	5	–	–	﹤0.01%	2863
2022 Q4	$301	Hold	5	–	–	﹤0.01%	2846
2022 Q3	$0	Hold	5	–	–	﹤0.01%	2808
2022 Q2	$0	Buy	+5	New	+$146	﹤0.01%	2808
2021 Q4	$0	Hold	4	–	–	﹤0.01%	3447
2021 Q3	$0	Hold	4	–	–	﹤0.01%	3928
2021 Q2	$0	Hold	4	–	–	﹤0.01%	3916
2021 Q1	$0	Buy	+4	New	+$75	﹤0.01%	3694

Other funds holding PRTA

Fidelity Investments

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Rubric Capital Management (New York) New York $8.16B AUM 68.42% 1-Year Est. Return

BlackRock New York $5.7T AUM 30.48% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

D.E. Shaw & Co New York $127B AUM 43.98% 1-Year Est. Return

ADAR1 Capital Management Austin, Texas $1.66B AUM 340.85% 1-Year Est. Return

Acadian Asset Management

Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Palo Alto Investors Palo Alto, California $654M AUM 77.8% 1-Year Est. Return